Table 3. SARS-CoV-2 breakthrough infections and need for hospitalization versus seropositivity (n=13).
| Not hospitalized | Hospitalized | p-value | |
| Seropositive | 6 | 5 | 0.224 |
| Seronegative | 2 | 0 |
| Not hospitalized | Hospitalized | p-value | |
| Seropositive | 6 | 5 | 0.224 |
| Seronegative | 2 | 0 |